US3877431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ostomy gasket
Assignee: Hydro Optics Inc
•
Filing: 1974-01-09
•
Granted: 1975-04-15
•
Expires: 1994-01-09
Abstract
Abstract An improved ostomy sealing gasket for application to the opening between the intestinal or urethral stoma of the patient and a post-surgical external pouch. The sealing gasket is characterized as made from a unique hydrophilic polymer made from a hydroxyalkyl acrylate or methacrylate with a polyalkylene glycol in the presence of a reducing agent and water.
Inventors
- 👤 Robert D Kross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:13
CPC Classifications
A; A61; A61L; A61L28/00; A61L28/0007; A61L28/0026; A61F; A61F5/00; A61F5/44; A61F5/443; A61L28/0011; A61L2400/00; A61L2400/14; Y; Y10; Y10S; Y10S128/00; Y10S128/24
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
85 words
AN OSTOMY SEALING GASKET DESIGNED TO PROVIDE A SEAL BETWEEN A POST-SURGICAL DRAINAGE POUCH AND THE SKIN AROUND THE STOMAL OPENING COMPRISING A FLAT SHEET OF POLYMERIC MATERIAL INCLUDING AN OPENING THERETHROUGH TO RECEIVE THE STOMA OF THE PATIENT, WHEREIN SAID POLYMERIC MATERIAL COMPRISES THE REACTION PRODUCT OF: A. A COMPOUND SELECTED FROM THE GROUP CONSISTING OF A HYDROXYALKYL ACRYLATE, A HYDROXYALKYL METHACRYLATE AND MIXTURES THEREOF; B. A POLYALKYLENE GLYCOL; AND C. A WATER-SOLUBLE REDUCING AGENT, THE REACTION CARRIED OUT IN THE PRESENCE OF WATER.
Claim 2
Dependent Claim
85 words
AN OSTOMY SEALING GASKET DESIGNED TO PROVIDE A SEAL BETWEEN A POST-SURGICAL DRAINAGE POUCH AND THE SKIN AROUND THE STOMAL OPENING COMPRISING A FLAT SHEET OF POLYMERIC MATERIAL INCLUDING AN OPENING THERETHROUGH TO RECEIVE THE STOMA OF THE PATIENT, WHEREIN SAID POLYMERIC MATERIAL COMPRISES THE REACTION PRODUCT OF: A. A COMPOUND SELECTED FROM THE GROUP CONSISTING OF A HYDROXYALKYL ACRYLATE, A HYDROXYALKYL METHACRYLATE AND MIXTURES THEREOF; B. A POLYALKYLENE GLYCOL; AND C. A WATER-SOLUBLE REDUCING AGENT, THE REACTION CARRIED OUT IN THE PRESENCE OF WATER.
Claim 3
Dependent Claim
23 words
An ostomy sealing gasket according to claim 1, wherein the polyalkylene glycol has an average molecular weight of about 200 to about 650.
Claim 4
Dependent Claim
29 words
An ostomy gasket according to claim 1, wherein the water-soluble reducing agent is selected from the group consisting of hydroquinone, ascorbic acid, araboascorbic acid, erythorbic acid, and mixtures thereof.
Claim 5
Dependent Claim
60 words
An ostomy sealing gasket according to claim 1, wherein the acrylate component is utilized in the range of about 75 parts to about 175 parts, the glycolic component in the range of about 75 parts to about 150 parts, and the reducing agent in the range of about 0.05 part to about 0.5 part, all parts per 100 parts water.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |